TJA1043TKY - 5 Mbps CAN Transceiver | NXP | Automotive
MPN： TJA1043TKY ✓ 啟用中TJA1043TKY 概覽
A Controller Area Network transceiver is a physical-layer interface within the CAN network hierarchy. A CAN protocol controller generates and interprets framed messages, while the transceiver converts those digital controller signals into differential bus levels and converts received bus levels back into controller-compatible signals. This division keeps protocol handling and physical-layer signaling separate, allowing a microcontroller-based CAN controller to communicate over a differential, fault-tolerant vehicle network.
The TJA1043TKY supports high-speed CAN communication up to 5 Mbps and includes standby and sleep modes for reduced power use when communication is not continuously required. Normal mode supports active bus communication, while the low-power modes help manage operating current in parked or partially active vehicle systems. The part is identified by distributor listings as automotive-grade and AEC-Q100 qualified. Its small HVSON package supports compact electronic control-unit layouts, although exposed-pad layout and thermal management must follow the NXP datasheet.
The transceiver provides the required interface between a CAN protocol controller and the physical two-wire CAN bus. Differential signaling improves common-mode rejection on vehicle networks, while the transceiver handles the electrical relationship between controller-side TXD and RXD signals and bus-side CANH and CANL conductors. Because these signals interact with wiring, termination, protection, and electromagnetic compatibility requirements, PCB layout and cable routing remain as important as controller firmware.
Typical uses include automotive body-control modules, powertrain controllers, gateway units, comfort systems, engine controllers, and industrial CAN equipment connected to vehicle-grade electronics. The verified data specifically associates the device with 5 Mbps CAN, 5 V operation, low-power sleep and standby states, and automotive qualification. It is suitable when an existing design uses the 14-HVSON footprint and its exact pin functions and exposed-pad requirements.
A critical design step is to reproduce the manufacturer-recommended package land pattern, pin assignments, CAN bus routing, termination, and decoupling exactly from the datasheet. Do not infer exposed-pad connections or bus-component values from the distributor summaries. Before release, validate timing, bus loading, fault behavior, sleep current, EMC performance, and wake behavior across temperature and supply tolerances using the complete manufacturer documentation.
This page combines verified distributor specifications, official NXP documentation, application guidance, and drop-in-replacement constraints. It also identifies where detailed pin-level, electrical-limit, lifecycle, price, and certification information requires direct verification from the manufacturer datasheet or current distributor quotation.
直接替換替代品，適用於 TJA1043TKY — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TJA1043TKY （相同外形與佔位） — 差異在於 Package, Product Type.
TJA1043TKY 規格
| Product Type | 1/1 half CANbus transceiver |
| CAN Data Rate | 5 Mbps |
| 供應電壓 | 5 V |
| Operating Modes | Normal, sleep, and standby |
| Automotive Qualification | AEC-Q100 |
| Bus Interface | Two-wire differential CAN bus |
| Controller Interface | CAN protocol controller |
| Transmit Capability | Differential CANH/CANL output |
| Receive Capability | Differential receive from CANH/CANL |
| 封裝 | 14-HVSON, 3 x 4.5 mm |
| 腳位數 | 14 pins |
| 安裝類型 | Surface mount |
| Transceiver Count | 1 transceiver |
| Product Category | High-speed CAN transceiver |
| Target Market | Automotive |
| Manufacturer | NXP Semiconductors |
TJA1043TKY 14-hvson, 3 x 4.5 mm 腳位配置指南
TJA1043TKY（14-hvson, 3 x 4.5 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TJA1043TKY.
請參閱 資料表 以查看完整腳位配置。
典型應用
TJA1043TKY 適用於 6 應用s: Automotive Body Control Module, Automotive Gateway Controller, Powertrain Electronic Controller, Vehicle Comfort and Infotainment Network, Industrial CAN Equipment, CAN Test and Measurement.
Automotive Body Control Module
The TJA1043TKY fits a body-control CAN node because it connects a microcontroller or dedicated CAN controller to the physical two-wire network at rates up to 5 Mbps. Differential CANH and CANL signaling supports communication among doors, lighting, climate controls, and other distributed vehicle functions. The verified 5 V operation, sleep and standby states, AEC-Q100 identification, and compact 14-HVSON package are useful for space-constrained modules that must remain compatible with low-power vehicle networks. Layout must follow NXP's exact land pattern and route the differential pair as a controlled network.
推薦
Automotive Gateway Controller
The TJA1043TKY can provide the physical-layer interface for an in-vehicle gateway node when another microcontroller or CAN controller handles frame routing. A rate of up to 5 Mbps accommodates high-bandwidth communication, while differential receive and transmit support the bus-side CANH/CANL connection. Sleep and standby operation can support reduced-power states in parked or network-inactive conditions. Because the transceiver has one CAN channel, designs requiring multiple CAN domains should add additional transceivers and validate isolation, termination, routing, and fault behavior separately.
推薦
Powertrain Electronic Controller
The TJA1043TKY is a candidate for a CAN connection in an engine, transmission, or hybrid powertrain controller because the verified data identifies automotive qualification and operation up to 5 Mbps. It handles the physical CAN interface rather than control algorithms, diagnostics, or actuator drive. Designers should verify the exact temperature grade and electrical limits against the production ECU requirements, then implement the manufacturer's recommended protection, termination, decoupling, and exposed-pad layout. Diagnostic behavior and bus fault recovery must also be validated with the associated CAN controller.
推薦
Vehicle Comfort and Infotainment Network
The TJA1043TKY can connect comfort-domain modules such as climate, seat, lighting, and infotainment controllers to a shared two-wire CAN network. Differential bus signaling helps reject common-mode noise present around vehicle wiring, while the verified 5 Mbps capability supports a broad range of control and status traffic. The standby and sleep modes are useful when an ECU should reduce activity without leaving the network immediately. Software should coordinate wake and sleep transitions so a partial-power node does not disturb communication among other modules.
推薦
Industrial CAN Equipment
The TJA1043TKY can be evaluated for industrial machinery, robotics, or test equipment that uses a compatible 5 V, high-speed CAN physical layer. Its single transceiver and maximum 5 Mbps rate suit distributed control and monitoring nodes with moderate bandwidth requirements. The automotive qualification may provide confidence for harsh installations, but industrial users must still confirm electrical limits, temperature range, EMC performance, and long-term availability. Sleep and standby states can reduce system consumption when motion stops or a machine enters a controlled idle state.
推薦
CAN Test and Measurement
The TJA1043TKY can form the physical interface in a CAN analyzer, interface module, or automated test fixture. A maximum data rate of 5 Mbps supports monitoring and injection in systems that comply with the device's timing and bus requirements, while normal, sleep, and standby states provide useful control for bench equipment. The designer must provide compatible termination, test hooks, protection, and a controller capable of generating the required CAN frames. Measurement accuracy and fault coverage depend on instrumentation, calibration, isolation, and firmware rather than the transceiver alone.
推薦
推薦產品摘要
工程參考資料，適用於 TJA1043TKY — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TJA1043TK |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| CAN Data Rate | 5 Mbps | 5 Mbps family value |
| Supply Voltage | 5 V | 5 V family value |
| Operating Modes | Normal, sleep, and standby | Normal, sleep, and standby family value |
| Automotive Qualification | AEC-Q100 | AEC-Q100 family value |
| Bus Interface | Two-wire differential CAN | Two-wire differential CAN |
| Transceiver Count | 1 | 1 |
| Mounting Type | Surface mount | Surface mount |
主要差異化特點
- Verified high-speed operation (對比Generic lower-speed CAN transceivers)
- Explicit low-power operating states (對比Transceivers limited to normal mode)
- Automotive qualification and compact integration (對比Generic industrial SOIC CAN devices)
設計說明
Use the official NXP HVSON land pattern and pin table exactly. Confirm whether the exposed pad connects to a specified power or ground terminal, follow the required via arrangement, and keep CANH/CANL routing away from switching nodes and high-current paths. The supplied distributor results confirm the 3 x 4.5 mm package but do not provide the terminal map, so no pin or pad connection should be inferred from the package name alone.
Route CANH and CANL as a closely coupled differential pair with continuous return-path reference, matched clearances where practical, and minimal stubs. Place termination, protection, and transceiver circuitry according to the manufacturer application guidance. Keep the bus away from antennas, clocks, and switching-power loops because common-mode noise and impedance discontinuities can cause communication errors even when the controller is operating within its nominal settings.
Design the 5 V rail with the decoupling and tolerances required by the full NXP datasheet, and verify low-power behavior for both normal and sleep transitions. Do not assume that standby and sleep state currents are interchangeable. Use firmware and external wake circuitry to ensure partial-power nodes do not hold the bus in an unintended dominant state or prevent other ECUs from communicating during low-power intervals.
Avoid choosing a substitute solely because both devices are CAN transceivers. Pin mapping, logic levels, mode controls, package exposed pad, bus timing, electrical limits, and sleep behavior must all match. The supplied cross-reference results did not verify five distinct same-package replacements, so TJA1043TK is the only family-related candidate and should not be treated as a final drop-in approval without manufacturer documentation and board-level validation.
合規資訊
Arrow identifies TJA1043TKY as AEC-Q100 automotive qualified. The supplied verified results do not explicitly establish RoHS, REACH, lead-free, halogen-free, or conflict-minerals status.
